Fire From Ice

This is a rather unique method of obtaining
fire. At first thought it sounds just as implausible as the "fire from
water" method. But after some thought, it becomes obvious how to proceed.
However, there are many issues to overcome in actually getting a fire using this
method! It's not as easy as it might seem.

Footnote:
One of the biggest challenges in obtaining fire from ice is in first
creating pure clear ice, without any air bubbles inside. The air bubbles
must be kept moving towards the surface as the ice water freezes. This is
done by vibrating the water as the ice forms. This is what ice sculpture
artists do.